Floor cleaning device



FIG. 1 is a top view of the floor cleaning device;

FIG. 2 is a front view of the floor cleaning device;

FIG. 3 is a back view of the floor cleaning device;

FIG. 4 is a bottom view of the floor cleaning device;

FIG. 5 is a right side view of the floor cleaning device;

FIG. 6 is a left side view of the floor cleaning device; and,

FIG. 7 is a top perspective view of the floor cleaning device.

The dashed lines in the figures do not form any part of the design. 

CLAIM The ornamental design for a floor cleaning device, as shown and described. 